DH and I messed up. My employer offers a better health insurance plan than my husband so I typically sign up for a family plan whereas DH usually opts out of insurance with his employer. Last year, I signed us up for a normal health insurance plan. During open enrollment, I switched us to a high deductible plan so we could fund an HSA. DH separately signed up for an healthcare FSA for 2017 during his open enrollment period. DH has called his employer to see if they can stop his FSA from funding, but they are not sure they can.
What are the penalties for this? Can we still use his FSA money and just take a tax penalty or can we not touch the money at all? What else can we do?